• AD654: FAQ

    FAQ

  • AD654 long-term stability data

    Q 

    Is there any information about long term stability of AD654 available?

     

    A 

    Unfortunately we do not have any data on the long term stability of this part.

  • About the temperature characteristics of AD654

    Hello

    I have a question regarding the AD654.


    Please tell me the temperature dependence of the following items of ANALOG INPUT AMPLIFIER.
    ・ Input Bias Current 30 nA (typ) temperature dependence (xxx ppm / ℃)
    ・ Input Offset Current 5 nA (typ) temperature…

  • AD654 Fout's state on 0Hz output.

    Hi, guys. Thank you for your support.

    According to Figure 1 and Figure 2 of the AD654 data sheet,  Fout = 0 Hz when VIN = 0 V. 

    Please let me know that BJT of Fout is ON or OFF at this time?

    Best regard.

    Yuki.

  • RE: About AD654

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    …

  • RE: AD654 erroneous pulse output

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    …

  • RE: Are there any examples of the AD654 used as a F/V converter?

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    …

  • AD654JRZ 's output frequency is less than the normal value.

    The output frequency is less than the normal value, the input signal is 3.8089V, and the output frequency is 2.299KHZ. Can you help us provide some solutions？

  • RE: Request for reference circuit of AD674B/AD774B

    Hi,

       Sorry but we do not have a reference circuit for the AD654. But we can share articles like application notes and technical article about the V-to-F conversion. Do you have a particular application you want to use the AD654?

    http://www.analog.com…

  • RE: AD 654 V to F low frequency

    Hi,

       The frequency output are affected by R1 , R2 and Ct. The accuracy of this components can help determine the accuracy of the frequency output including also the errors contribute by the AD654. As mentioned in the datasheet, there is non linearity…